For a positive charge

PHYSICS · Subjective · A Level · Physics · Fields and their consequences · Fields and their consequences

Problem

q

, the velocity and magnetic field vectors are given by

\vec v=v_{0}(3\hat i-4\hat k)

and

\vec B=B_{0}(\hat j+\hat k)

, respectively. Find the magnetic force

\vec F

in unit-vector form in terms of

q,\,v_{0}

and

B_{0}